I also have a Radeon HD6850, and i can't even get to a working desktop. It shows the desktop wallpaper, and the mouse, while getting the same message in syslog. I tried the 3.4.0-... kernel provided in comment #5, but that gives no improvement.
I also have a Radeon HD6850, and i can't even get to a working desktop. It shows the desktop wallpaper, and the mouse, while getting the same message in syslog. I tried the 3.4.0-... kernel provided in comment #5, but that gives no improvement.